液压起货机故障分析

分类号编号

xx 大学

毕业论文

船舶液压起货机故障探析

The Analysis of Hydraulic Ship-Crane Failure

申请学位：工学学士

院系：xxx学院

专业：轮机工程

姓名：xx

学号：xxxx

指导老师：xxxx

xx年xx月xx日

xx大学

[摘要]船舶液压起货机液压系统的故障诊断和维修一直是船舶维修工作的难点之一。对该液压系统进行状态监测和故障诊断是一门综合技术。它可用于掌握系统各液压设备的实际运行情况, 判断系统质量的优劣, 预测故障的发展趋势及危害程度, 查找故障的原因、部位及异常程度, 实现设备的预防维修和正常维修, 从而提高系统各液压设备的可靠性。液压起货机液压系统常见的故障有以下几种系统没有压力或压力不足, 工作部件运行时爬行, 系统有噪声和振动, 工作机构的运行速度不够, 系统泄漏严重, 非正常发热和动作不能实现等。本文用了功率流的故障诊断方法，它与逻辑分析相结合, 能大大提高液压系统故障诊断的快速性和准确性, 可广泛利用于船舶液压系统的故障诊断方面。通过对液压起货机的故障分析得出除个别故障属设计缺陷所造成之外，绝大部分故障与液压油的污染或日常维护管理不善有关。所以，提高液压系统中油液的清洁度，建立必要的维护管理体系,提高维护管理人员的专业知识，是降低液压起货机故障发生率最为有效的途径。

关键词：液压起货机；故障；诊断

Abstract：Hydraulic Crane ship's hydraulic system fault diagnosis and maintenance of the ship repair work has been a difficult one. The hydraulic system condition monitoring and fault diagnosis is a comprehensive technology. It can be used for hydraulic control system of the actual operation of equipment, determine the merits of quality systems, forecast the development trend of failures and extent of harm, failure to find the reasons, location and extent of anomalies, and preventive maintenance of equipment and normal maintenance, improve the system of hydraulic equipment reliability. Hydraulic Crane hydraulic system failures are common following pressure or pressure system is not lack of working parts running reptiles, the system noise and vibration, the work of running speed is not sufficient, system leakage serious, non-normal fever and action Can not be achieved, and so on. In this paper, the power flow of fault diagnosis method, it is the logic of the combination, can greatly increase the hydraulic system failure and rapid diagnosis of accuracy and be widely used in the ship's hydraulic system fault diagnosis. Crane through the hydraulic machine that in addition to the failure of individual failure is caused by design flaws, failures and most of the hydraulic oil pollution or poor management of the daily maintenance. Therefore, the increase of oil in the hydraulic system of cleanliness, the establishment of the necessary maintenance, improve the maintenance and management expertise, hydraulic Crane is to reduce the incidence of failure of the most effective way.

Key words：Hydraulic Crane Machine；Fault ；Diagnosis

目录

绪论 (1)

1 IHI液压起货机起吊系统故障分析 (2)

1.1 IHI液压起货机起吊系统分析 (2)

1.2 基于功率流理论的故障的诊断方法 (2)

1.3 该起货机起吊无力的故障诊断 (3)

2 液压起货机油马达故障排除 (5)

2.1 故障现象与分析 (5)

2.2 故障检查与修理 (5)

3 起货机控制系统故障 (6)

3.1 故障现象 (6)

3.2 故障分析与排除 (6)

3.3 几点建议 (7)

4 利布赫尔型起货机液压系统故障分析 (9)

4.1 液压系统工作原理 (9)

4.2 常见故障分析 (12)

结论 (15)

致谢 ................................................ 错误！未定义书签。参考文献 (15)